Oven or the like.



E. WOOLLETT.

OVEN OP. THE LIKE. APPLIOATION FILED mxo. e, 1909.

1,01 1,698. 'Patented De.12,1911.

28 Z9. Z9 MI Z5 E. WOOLLETT.

OVEN 0R THE LIKE. APPLIOATION FILED pme, 1909.

1,01 1,698. Patented Dec.12,1911.

2 SHEETS-SHEET z. @j

UNITED STATES PATENT OFFICE.

ERNEST WOOLLETT, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO FRED WHITFIELD, 0F CHICAGO, ILLINOIS.

OVEN OR THE LIKE.

Specicationof Letters Patent.

Patented Dec. 12, 1911.

Application led December 6, 1909. Serial No. 531,688.

To all whom 'it may concern:

Be it known that I, ERNEST WooLLE'r'r, a citizen of the United States, residing at Chcago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Ovens or the Like, of which the following is a description. y

My invent-ion belongs to that class of devices known as ovens or the like, and has among its objects the production of a simple, efficient and satisfactory device of the kind described, which may be manufactured and assembled at lcomparatively small cost and used wherever found applicable.

To this end my invention consists in the novel construction, arrangement and combination of parts herein shown and described and more particularly pointed out in the claims. u y A In the drawings wherein like reference characters indicateA like or corresponding parts, Figure 1 is a perspective view of an assembled device, Fig. 2 is -a sectional view of the same taken substantially on line 2-2 of Fig. 3, Fig. 3 is a sectional-view of the same taken substantially on line 3-3 of Fig. 2, Fig. 4'is a perspective view of one of the wall units, Fig. -is a fragmentary perspective view of a similar unit formed as a suitable door, 6 is a view in elevation partly in section of one of the lower rear corners,

the angle irons and bolts used in the preferred construction to retain the parts of the oven in operative relation to each other, and Fig. 3 is a sectionalview of any one of the walls showing the enamel 31 applied thereto. l

Referring to the drawings in which the preferred form of my device is shown, the oven consists of'a number of what'may be termed wall units 1, 2, 3, 4 and 5 and a suitable door 6, and means for securing the several parts or units together to form a receptacle. As most clearly shown in Figs. 2,

the angles of the sides are preferably such that the apexes of the imaginary pyramids Fig. 7 is a perspective detail view of4 a portion of will meet at a common center. The walls 1 to 5 when assembled with the edges fla-red outward, are preferably retained by means ofsuitable angle pieces 15-15, etc., an angle frame 16 and 17, suitable bolts and nutslS and 19 or their equivalents for the purpose being provided to secure the frames 16 and I 17 together. In this manner the wall units are securely and rigidly held without the use of screws, bolts or the like passing through or engaging the wall units. The door 6 may be of any suitable form or construction and secured in position in any suitable way. As shown, it preferably comprises the wall part 6 having the edges 7 bent or ared to correspond-with. the other walls and then bent substantially as shown at 8 and pivotally secured to 'the angular frame 17 by means of suit-able hinges 22 or their equivalent. As most clearly shown in Fig. 3, I preferably form the angle frame 17 out of metal and bendthe same as indicated at 20 and 21, forming a -very satisfactory joint between the doorV and-the angle frame as well as between the an le frame and the walls 2, 3, 4 and 5. If desired the units may be enameled on the interior, as at 31, to form an enameled interior to the `oven or receptacle. Any other desired finish maybe emloyed. In case vof the enamel, however, it should be noted that the preferred construction for maintaining the units will not crack the enamel of the units, as might be the case iff screws or bolts pierced the enameled surace.

The oven may be used as above described. However, if desired, insulating material 10 may be arranged between the edges 7, as

most clearly shown in Figs. 2 and 3, as well as in the space formed by the wall and edges of the unit. If the liared edges are enameled the insulating material 10 prevents the two enameled surfaces from coming into direct cont-act, thereby preserving the same. As shown, the insulating material arranged in the space made by the unit, that is, within the pan, comprises suitable corrugated parts 11 and sheets 12 of asbestos or equivalent material. Any preferred form of insulation may be provided. A suitable sheet or plate 13 of asbestos or the like, but preferably of silicated canvas or similar material, may be arranged as shown. To retain the insulating material in the several units plates 14 or their equivalents may be provided,

the same being retained by the angle irons 15 and frames 1G and 17. The plates 14 may be cut out or perforated asi at 141 to decrease the radiating surfaces and weight.

l also preferably provide suitable insulating" material between the plates 14 and the edges 7 of the wall members, or as most clearly shown in Figs. 2 and 3 of the drawing, extend the silicated canvas or insulating material 13 so that it serves the same purpose. As is obviousthe interior Wall members of the oven when constructed and arranged as shown and described, are entirely insulated from the exterior ofthe device. Vhen desired to provide insulating material within the pan forming the door 6, the part 8 of the edges of the pan may be bent as shown at 9 in order to maintain the plate 14 carried by the door in position. However, any equivalent construction may beemployed.

lf desired, some of the` side walls, as for example Walls 3 and 4, may be formed with ledges 29 on the interior of the oven for the purpose of supporting suitable trays or racks. ln the drawings I shoiv a burner 25 connected to an inlet pipe 26 and a suitable heat storing plate 23 similar to that mentioned in my prior patents orvapplications, the same being shown provided with openings 24 around the edges. The mixer for the gas burner is not shown. A suitable door 27 may also be provided, if desired, the same being shown as secured to the plate 23 by means of links 28. It should be understood that I do not limit myself to any style of burneror heat storing plate or to the combination of the same in a device of the kind described, as these p'arts form no partof the present invention. l

In a construction'of this kind when th .side walls are enameled on the interior as before' mentioned and the units maintained in the manner set forth, there are no yscrews or bolts to pass through or engage the plate, or enameled surface and crack the enamel, nor does any part of the interior metal part of the device extend to the exterior, either directly or indirectly except at the door. Ilz-shouldA also be noted that in this construction the walls may expand without racking theh device and that the Steam cannot pass directly from the oven into the insulating material in the Wall units, as for instance, inthe case Where bolts or screws pierce the'inner walls of the oven.

While-I show a gas burner and heat storing plate it is of course obvious thatany 'other style-of burner or heater may be emloyed. ltis not considered necessary to illustrate other forms of heaters, therefore the same are omitted from the drawings.

Having thus described my invention it is.l

obvious that various immaterial modicatlons may be made 1n the construct1on,'a r rangement and combinatlon of parts herein minces shown and described without departing from the spirit of my invention, hence ll do not Wish to be understood as limiting myself to the exact form, arrangement, construction or combination of parts herein shown and described or particular use mentioned.

What l claim as new and desire to secure by Letters Patent is:

l. An oven comprising a plurality of Walls forming the sides and* back of the oven, a frame of angle iron embracing the adjacent portions of the sides and back of the oven, a frame of angle iron embracing the forward edges of the sides of the oven, and adjustable means for detachably connecting said frames to clamp back of the oven together.

2. A knockdown oven comprising a pl`urality of walls having contacting beveled edges and forming the sides and back of the oven, a frame of angle iron embracing the adjacent portions of the sides and back of the oven, a frame of angle iron embracing the forward edges of the sides of the oven, and tie rods detachably connecting said frames.

3. A knockdown oven comprising a plurality ofv Walls having contacting beveled edges, said Walls forming the sides and back of the oven', a frame of angle iron embracing the adjacent portions of the sides and back of the oven, a frameof angle iron embracing the forward edges of the sides of the oven, and-means for detachably connecting said frames and positioned outside of the oven walls.

4. An oven comprisingaplurality of walls v having contacting beveled edges, said Walls forming the sides and back of the oven, angle irons embracing the adjacent edges of the sides of said oven, a frame .of angle iron embracing adjacent portions of th'e back and sides `of said oven and overlying the rear ends of said angle irons, a ,frame of angle ironembracing the front'edges of the said walls of the oven and overlying the front ends of said angle irons, and tie rods connecting said frames.

oven comprising'v a plurality of walls having contacting beveled edges, said oven, angle irons embracing the adjacent edges of the sides of said oven, a frame of angle iron embracing adjacent portions of the-back and sides ing the rear ends of said angle irons, a frame of angle iron embracing thel front edges of the sides of the oven and overlying the front ends lof said angle irons, and tie rods c0nnecting saidframes, said tie rods being pov sitioned outside of the oven walls and wit in the corners of said angle ironst 6.'Anoven comprising a plurality of walls having contacting bevelededges, said walls forming the sides and backl of the the sides and v of the oven and over1y,

walls forming the sides and back ofthe oven, a frame of angle iron embracing the adjacent portions of the sides and back of the oven, a frame of angle iron embracing the forward edges of the sides of the oven, the inner portion of said last mentioned frame being fashioned to coperate with the front edges of the said sides to `form a door opening, a door fitting said door opening, and tie rods connecting said frames.

7. An oven comprising a plurality of pan.- shaped Walls* having 'their adjacent edges ybeveled and forming when assembled the sides and back of the oven, insulating material in each of said pan-shaped walls, a retaining plate fitting over the top of each of said pan-shaped walls, and clampingmeans surrounding said walls and independent thereof, for holding the same in their assembled positions.

8. An oven comprising a plurality of pan shaped units adapted when assembled' to form the sides and back of the oven, the adjacent edges of said units abutting when the units are assembled, a cover plate of insulating material for each of said pan shaped units, and clamping means surrounding said units and overlying the cover plates thereof for holding the same in assembled position.

9. In an oven of the kind described, a plurality of sheet metal pan shaped wall units, insulating material arranged in the pans formed by said units and means insulated therefrom for engaging and retaining said units in operative relation to each other.

10. In an oven, a plurality of sheet metal wall unit-s, each provided with outwardly flared edges forming substantially a pan, insulation arranged within the spaces formed by the wall and edges of each pan, means for maintaining said insulation in position, and means for retaining said Walls in operative relation to each other, said means insulated therefrom.

In testimony whereof,I have hereunto signed my name in the-presence of two subscribing witnesses.

l ERNEST WOOLLETT.

Witnesses: Y

ROY W. H111.,- CHARLES I. COBB. 

